Sharon sent me these pictures of her Dragon Trees. She had recently bought the house.

Here’s my slightly edited reply.
It looks like your Dracaena Dracos have all been planted recently and are struggling to re-establish. Seafood fertilizer or a palm fertilizer will help them.
Trimming all the lower leaves back will also help a lot as the plants will be struggling to support all those leaves, you can be harsh with that.
Except for the big one all the other three will need to be transplanted at some point in the future, while that may …